Improvement in machines for pulverizing sugar



'Nirn rains O. It. CHASE, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO IIIMSELFAND SILAS E. CHASE.

IMPROVEMENT IN MACHINES FOR PULVERIZING SUGAR.

Specification forming part of Letters Patent No. 7.7 l S, dated October15, 1850.

T0 all whom it may concern:

Be it known that I, OLIVER R. CHAsn, of Boston, in the county of Suffolkand State of Massachusetts, have invented a new and useful Machine orMill for APowdering Sugar or various other Materials and I do herebydeclare that the same is described and represented in the followingspecification and accompanying drawings, letters, figures, andreferences thereof.

Of the said drawings, Figure l denotes a top view of the said machine.Fig. 2 is an external elevation of it. Fig. 3 is a vertical and centralcross-section of it. Fig. 4 is a horizontal cross-section of it, thesame being taken through the stampers and cylindrical case or mortar.Fig. 5 is a top view of the cylindrical case or mortar as the same wouldappear when divested of the series of stampers and their cell-carrier.Fig. 6 is an external view of the cell-carrier as detached from themortar. Fig. 7 is a front elevation of one of the stampers. Fig. 8 is aside view of the said stamper.

The external or iirst part of my invention consists of a cylindricalvessel or mortar, A, made of cast-iron or other suitable material, andof such thickness and dimensions as circumstances may require. It isentirely open at top, and has a hopper or tunnel conductor, B, arrangedon it externally, and leading through its side and just above itsbottom. It is also provided with an outlet or, hole, c, made through itsbottom, and near the outlet or discharging orifice of the hopper, asseen in Fig. 5. The top edge of this mortar is surrounded with a seriesof inclined planes or cams, C C C, 85e., which are arranged at equaldistances apart. A series of stampers, D D D, Src., is placed within themortar and arranged around it and against the inner curved surface ofit, each of the said stampers being placed in one of a series of cells,E E E, Src., formed by a series of plates or wings, F F F, ne.,radiating from the external surface of a cylinder, G, which is fixed ona vertical shaft, H, whose foot is stepped into or through the bottom ofthe mortar, and so as to enable the shaft to freely rotate. From theexternal facev of each of the stampers and at its upper end a cam, I,projects, as seen in the drawings, the

said cam being so arranged that when the series of stampers is put inmotion around and within the mortar (which will take place when theshaft H is put in revolution in the right v direction) it willsuccessively meet and run over the several cams C C C on the mortar.Each stamper, as soon as its cam is carried into contact with one of thecams C, begins its rise upward within its cell, and continues to do sountil its cam passes entirely over and beyond the said cam C, when itwill immediately fall down vertically, and upon sugar or any othermatter which may be in its cell and underneath it. The lower end of thestamper is curved upward on its advancing edge, as seen at c in Fig. 7.The entrance-hole of the hopper should be placed below and directlybetween two adjacent cams C C, while the exit-hole or discharge-passagea should be placed below and directly between one of the said cams andthat next in rear of it, the object of such a disposition of said part-sbeing not only that any stamper in passing by the entrance-hole may beelevated sufficiently to allow the sugar to run from the hopperinto hecell of the said stamper, but also that all he sugar previously receivedinto such cell, and comminuted by the repeated blows of the stamper, maybe expelled therefrom and through the bottom of the mortar immediatelybefore such cell is brought into direct coinmunication with the hopper.The rotation of the series of cells will cause the stampers,

through the action of the cams, to alternately and successively rise andfall, each stamper being elevated and depressed as often as its cam iscarried over and beyond any one of the mortarcams.

In order to steady the stampers'during their vertical motions, each maybe made to slide upon a vertical pin or rod, f, of a series of such pinsextended down from a circular horizontal plate iixed to the shaft H. Therevolutions of the shaft H may be effected in any proper manner. In thedrawings it is shown as provided with a bevel-gear, II, made to engagewith a bevel-gear, L, fixed on a horizontal crank-shaft, M, disposedover it and supported by posts or standards N O.

In using the machine the sugar or other article to be crushed orpowdered is poured into the hopper. From thence it finds its Way or l arotative series of stampers, suitable maruns into each of the cells asthey are successively brought around into connection. with thedischarge-passage ofthe hopper. After being carried around and Withinthe mortar by the cell, and in the meantime receiving a Succession ofblows from the stamper sulliciently to pulverize or powder it, the saidquantity of sugar in the said cell is finally discharged through theopening a and out ofthe machine.

What I claim as my invention is- Tlie combination of a rotative seriesof cells,

chiner'y for actuating the stampers, and a cylindrical mortar, whenarranged and made to operate together, and to receive, pulverize, andexpel sugar or other material, substantially in the manner ashereinbefore speeied.

In testimony whereof I have hereto 'set my signature this 19th day ofAugust, A. D. 1850.

O. R. CHASE. Witnesses:

R. H. EDDY, BENJAMIN EDDY.

